新辅助剂PD-(L) 1阻塞加基化疗,用于潜在的切除性基因阳性非小细胞肺癌
Xuchen Zhang1, Hefeng Zhang2, Feng Hou3
1Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao, Shandong, 266035, China.
World journal of surgical oncology
|June 18, 2024
概括
新辅助剂编程细胞死亡-1/-1 (PD-1/PD-L1) 阻塞加化疗在基因突变非小细胞肺癌 (NSCLC) 患者中显示出较高的病理反应率,相比于化疗/氨酸激酶抑制剂 (TKIs). 然而,应答率低于接受PD-L) 1阻塞的癌基因阴性患者.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 胸部外科手术 胸部外科手术
背景情况:
- 新辅助剂编程细胞死亡-1/-1 (PD-1/PD-L1) 阻断在局部发达的瘤基因突变非小细胞肺癌 (NSCLC) 的疗效是有争议的.
- 这项研究评估了新辅助的PD-1/PD-L1阻断加上化疗对抗可切除的基因阳性NSCLC的化疗和氨酸激酶抑制剂 (TKI).
研究的目的:
- 评估新辅助剂PD-1/PD-L1阻断加上化疗与化学疗法/TKI在可切除的基因阳性NSCLC中的疗效和安全性.
- 为了比较治疗结果,包括无事件生存率 (EFS),病理反应率和安全概况.
主要方法:
- 对接受新辅助治疗的切除性NSCLC患者的回顾性分析.
- 与接受新辅助剂PD-L) 1阻断的癌基因阴性队列进行比较.
- 收集的数据包括疗效终点 (pCR,MPR,EFS),安全性,PD-L1表达和瘤突变负担 (TMB).
主要成果:
- 在癌基因阳性患者中,新辅助性PD-(L) 1阻断加上化疗的pCR/MPR率为22.2%/44.4%,而化疗/TKI的pCR/MPR率为0%/23.1%.
- 接受PD-(L) 1阻塞的癌基因阴性患者表现出较高的PCR/MPR率 (46.7%/80.0%).
- 在基因阳性IO组中,EFS的中位数没有达到,而在29.5个月 (化疗/TKI) 和38.4个月 (基因阴性IO).
结论:
- 与化疗/TKI相比,新辅助剂PD-(L) 1阻断加上化疗改善了可切除性瘤基因突变性NSCLC的病理反应率.
- 用PD-L) 1阻断治疗的瘤基因突变NSCLC的应答率低于瘤基因阴性对应物.
- 癌基因变异类型和免疫治疗反应预测因素在临床实践中需要考虑.
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